Please help ive been searching for a while now.
i need help with my mp4 it went blank after upgrade ive asked other ppl but think really get an answer.
I really need help ive tryied sum firmwarez out there but got nothing but a blank screen.
Its not the one with the camera here are some details...

(digital-touch.rfw)

TS568 2.8TFT V1.1A
20071002 TANG

samsung 722

K9G8G08U0M
PCB0

Chip Vendor: RockChip
Chip Part-Number: RK260X

Product Vendor: (N/A)
Product Model: MP3 Player

EtronTech
EM636165TS-7
G050205RCZ372.1V

AND ON THE SIDE OF THE TOUCH SCREEN ON THE WHITE SPOT IT SAYS
N0711-17-27

Hi, i bought a mp4 player from mercadolibre, i have tested over 25 firmware files, and some got me to the blank screen, others to the inverted screens and some others to the disabled touch screen.

my problem is solved, this is the from my mp4 player data:

THIS IS THE MOTHERBOARD OF MY MP4 PLAYER 2.8" (Onda vx858LE clone)

RK2608A Chipset
htc-039c-rk-v2 2007-11-02 CHEN ,
IT HAS A SAMSUNG 8GB MEMORY CHIP, WITH NO CAMERA

"Mini MP4 Player" startup screen
"Goodbye" shutdown screen

i uploaded this file, a big one, with the firmware that worked for me, the instructions and some other options that could work for you in case that the firmware that worked for me doesn't work for you.

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